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Recorded CDG
professional
diploma in diamond grading

Diamond Grading Course

– Become a Certified Diamond Grader

Master the fundamentals of diamond grading with our Certified Diamond Grader Theory (Recorded).
This self-paced diamond grading course gives you expert-led video lessons, quizzes and official certification on completion.
Enroll Now
Course Fee: $568 (Incl. 21% VAT)

Upgrade to Diploma (Practical + Theory)

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Diamond Grading Course

– Become a Certified Diamond Grader

Master the fundamentals of diamond grading with our Certified Diamond Grader Theory (Recorded). This self-paced diamond grading course gives you expert-led video lessons, quizzes and official certification on completion.
Enroll Now
Course Fee: $568 (Incl. 21% VAT)

Upgrade to Diploma (Practical + Theory)

Recorded-CDG
professional
diploma in diamond grading

100% online theory (recorded) • English • Self-paced • Certificate on completion. Practical sessions available for the Diploma.

Globally Recognized Certificate

HRD Antwerp certified

Comprehensive Curriculum

Covers the 4Cs, simulants, treatments & lab-grown detection

Fully Recorded

Start anytime, anywhere

Course Curriculum

22 Sections | 41 Lessons | 90 Days

Lab Grown Diamonds Modules Included

  • D1: Diamond Properties
  • D2: Introduction to 4Cs
  • D3: Formation & Deposit
  • D4: Diamond Mining & Recovery
  • D5: Clarity Characteristics
  • D6: Clarity Grading
  • D7: Colour Origin in Diamond
  • D8: Colour Grading
  • D9: Diamond Light Interaction
  • D10: Cutting Processes
  • D11: Cut Grading
  • D12: Carat Weight
  • D13: Fancy Cut Grading
  • D14: Mounted Diamond Grading
  • D15: Diamond Treatments
  • D16: Diamond Simulants
  • D17: Introduction to LGD
  • D18: LGD Growth Methods
  • D19: LGD Detection and Separation
  • D20: Mining, Trading and Cutting Centres
  • D21: Pricing
  • Examination CDG Theory

Who should attend

Retailers, gemmology students, lab technicians, valuers, traders, designers, consultants and anyone wanting a recognized qualification in diamond grading.

Requirements

Minimum age: 18 years
No previous diamond experience required
Internet access and a device for video lessons

online recorded

Key Highlights

  • Learn from one of the world’s leading diamond institutes
  • Flexible online Certified Diamond Grader Theory training
  • Lab Diamond Grading content included in this course
  • Earn an internationally recognized Certificate in Diamond Grading

HRD Antwerp has trained thousands of professionals worldwide. Your Certificate is internationally recognized in the diamond industry.

Enroll Now — Start Immediately

Course Fee: $568 (Incl. 21% VAT)

Ready to elevate your Diamond expertise?

Ready to elevate your

Diamond expertise?

💳 Full payment per module required. Final price may vary according to local tax laws.

Enroll Now

Frequently Asked Questions

Is this course really self-paced?

Ans: Yes. You can start anytime after enrolling and completing the course at your own speed within 3 months of registration.

How is the course delivered?

Ans: All lessons are pre-recorded HD videos, available 24/7. You also receive handouts, visual charts, and interactive quizzes after each module.

Will I receive a certificate?

Ans: Yes. You’ll receive the HRD Antwerp – Certified Diamond Grader Theory (Recorded) certificate upon completing the theoretical exam.

Can I use this certification for career opportunities?

Ans: Yes. HRD Antwerp is recognized globally. Alumni have gone on to work in jewellery houses, labs, showrooms, and auction houses.

Can I use this certification in my retail store or sales role?

Ans: Yes. Many retailers and consultants use this certificate to boost their sales skills, product confidence, and trust with customers.

Can I use this to start a diamond grading business?

Ans: Yes. Many graduates use this knowledge to open small labs, offer grading services, or enhance credibility in retail and trade.

Is the certificate recognized internationally?

Ans: Yes. HRD Antwerp is a globally respected name with
certification recognized by jewellers, traders, and labs across the
world.

Is this the same curriculum as your in-person theory class?

Ans: Yes. The recorded course covers the same theoretical
content as the live version, with the flexibility of studying on your schedule.

Is this the same curriculum as your in-person theory class?

Ans: Yes. The recorded course covers the same theoretical
content as the live version, with the flexibility of studying on your schedule.

Want the full professional credential?

Combine this diamond grading course with our on-campus practical training to earn the Diploma in Diamond Grading.

Get in Touch 

Sign Up for the Diploma

Interested in lab grading specifically?

The Lab Diamond Grading course is available separately and also included in this recorded package. Learn lab-specific techniques and inclusion identification.
Course Fee: $114 (Incl. 21% VAT)
Explore Lab Grown Diamonds Course

Confused? Which Way To Go

There is a chat option on the screen our executive will guide you or Get in Touch

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Don’t just take our word for it

The Certified Diamond Grader course by HRD Antwerp was exactly what I needed to advance my skills without interrupting my work schedule. The self-paced format meant I could study whenever it suited me, and the pre-recorded lessons were so clear and professional. I particularly valued the in-depth demonstrations on clarity and colour grading. Completing this course has strengthened my credibility with clients across the Gulf region.

Rated 5 out of 5

Amina Al-Farsi

Dubai, UAE

I chose this course because I wanted structured, high-quality training that I could complete independently. The pre-recorded modules are exceptionally well-organized, with detailed examples and clear visuals that make complex concepts easy to grasp. The flexibility to learn at my own pace was essential for me. Earning this certificate has already opened new opportunities with established jewellers in Germany

Rated 5 out of 5

Lukas Schneider

Munich, Germany

I was a little nervous about studying diamond grading online, but the HRD Antwerp program exceeded all my expectations. The lessons are beautifully presented, step by step, so you can really build confidence on your own time. Even though it’s self-paced, I felt supported by the thorough materials and the professional approach. Now I feel proud to offer grading expertise in my store, and my customers truly notice the difference.

Rated 5 out of 5

Mei Ling Chen

Taipei, Taiwan

Enroll Now — Start Immediately

Course Fee: $568 (Incl. 21% VAT)

Ready to elevate your Diamond expertise?

💳 Full payment per module required. Final price may vary according to local tax laws.

Enroll Now

Still Confused?

Get in touch

Feel free ask anything related to this course

We are happy to assists you 

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